CN103465210A

CN103465210A - Sleeve with increased strength

Info

Publication number: CN103465210A
Application number: CN 201210438992
Authority: CN
Inventors: 宋立远
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-05
Filing date: 2012-11-06
Publication date: 2013-12-25
Also published as: JP3184802U; US9027445B2; TWI444255B; DE102013103210B4; TW201350275A; US20130319186A1; DE102013103210A1

Abstract

The invention relates to a sleeve for increasing strength, which comprises a body and a sleeve ring, wherein the body and the sleeve ring are both made of metal materials, the hardness of the sleeve ring is greater than that of the body, a wrenching hole is formed in a first connecting end of the body, a driving hole is formed in a second connecting end of the body, a first protruding section, a second protruding section and a combining section are arranged on the outer peripheral surface of the first connecting end, the sleeve ring comprises a first end surface, a second end surface and an inner peripheral surface connected between the first end surface and the second end surface, a sleeving section is arranged on the inner peripheral surface and combined with the combining section of the body, the sleeve ring is not in contact with the first protruding section and is not in contact with the second protruding section, and the sleeve ring is coated outside the first connecting end of the body to reduce the deformation of the wrenching hole under stress, so that the service life of the sleeve.

Description

The sleeve of gaining in strength

Technical field

The present invention mainly discloses a kind of sleeve of gaining in strength, and espespecially utilizes collar hardness to be greater than body and the sleeve that can gain in strength.

Background technology

Refer to U.S. Patent number the 5th, 782, No. 148 " Dual Depth Socket " Patent Cases, it discloses a kind of known tube-in-tube structure, and this kind of tube-in-tube structure one end forms square poroid driving perforate, in order to connect as hand-held tools such as spanners.The other end of sleeve forms double-depth and can be in order to hold the fastening assembly accommodation hole of hex(agonal)screw.

This kind of sleeve can be used in many workplaces, and for example be connected pneumatic impact spanner or electric wrench, and be applied in automated machine, as used in value controlling machinery, be one quite generally be used in locking or loosen the sleeve barrel tool of work.

But due to this sleeve regular contact the action of being locked or loosening with screw, so the fastening assembly accommodation hole of sleeve is constantly repeatedly to knock and the situation of colliding with screw, intensive and a large amount of workloads causes each place, end angle of the fastening assembly accommodation hole of sleeve to produce slight crack usually, if, while now continuing to use the sleeve that has produced slight crack to be locked work, will cause screw locking to turn round hypodynamic problem.

In addition, continue to use the sleeve that has produced slight crack also to have the problem of Occurrence safety, because sleeve is easy to damage because fatigue loading is too high, not only may cause the problem of injury staff in work, also likely cause whole working substance or the damage of board, therefore, high-frequency replacing sleeve new product will be inevasible result.

But change the sleeve new product, also can make job costs increase, quite not be inconsistent economic benefit, so the applicant proposes present patent application, to solve problem point.

Summary of the invention

The sleeve that the present invention gains in strength, in order to solve foregoing problems, provide a kind of sleeve that can reduce job costs and can gain in strength again.

The sleeve that the present invention gains in strength includes:

A body, this body is that metal material is made, and this body has reciprocal first link and second link, this first link offers one along the axially extended non-circular hole of pulling of body, this is pulled hole and can connect and treat the regular worker crop, this second link offers one along the axially extended non-circular drive hole of body, this drive hole can connect driven tool, this the first link appearance forms an outer peripheral face, this outer peripheral face has first convex section, second convex section and an adapter section, this first convex section and this second convex section are toward each other, this adapter section is connected in the inner peripheral of this first convex section and the inner peripheral of this second convex section,

A collar, this collar is that metal material is made, and the hardness of this collar is greater than the hardness of this body, this collar includes first end face, second end face and an inner peripheral surface be connected between this first end face and this second end face, this inner peripheral surface has a socket section, this socket section is combined in the adapter section of this body, and this collar does not contact with this first convex section, and this collar does not also contact with this second convex section.

Described sleeve of gaining in strength, wherein, the first end face of this collar does not contact with this first convex section in contrast to the second convex section and this first end face of this body, the second end face of this collar towards the second convex section of this body but this second end face with this second convex section, do not contact.

Described sleeve of gaining in strength, wherein, this adapter section has a length, this socket section also has a length, the length of this socket section is less than the length of this adapter section, this first end face and the reciprocal upper/lower terminal that is positioned at this collar of this second end face, form respectively the state that remains with space between the first convex section of the upper/lower terminal of this collar and this body, the second convex section.

Described sleeve of gaining in strength, wherein, when this collar is not sheathed on this body, the radius of this socket section is less than the radius of this adapter section, makes this socket section be a tight fit in this adapter section and not separate.

Described sleeve of gaining in strength, wherein, the radius of this adapter section is less than the radius of these the first convex section outer peripheral edges, and the radius of this adapter section is less than the radius of these the second convex section outer peripheral edges.

Described sleeve of gaining in strength, wherein, the radius of these the first convex section outer peripheral edges is less than the radius of these the second convex section outer peripheral edges.

Described sleeve of gaining in strength, wherein, the inner peripheral of this first convex section is expanded gradually and makes cross section be oblique line shape towards the direction that is away from this adapter section, and the inner peripheral of this second convex section makes cross section be 1/4 circular-arc towards the direction expansion that is away from this adapter section.

Described sleeve of gaining in strength, wherein, the end of this first link forms a terminal surface, this terminal surface inner peripheral is connected in the opening part that this pulls hole, the outer peripheral edges of this terminal surface are connected in this outer peripheral face, this outer peripheral face includes a lead segment that is connected in these the first convex section outer peripheral edges and these terminal surface outer peripheral edges, and the outer peripheral edges of this lead segment are dwindled gradually and make cross section be oblique line shape towards this terminal surface.

Described sleeve of gaining in strength, wherein, the radius of this lead segment inner peripheral is less than the radius of this adapter section, the radius of large and this lead segment inner peripheral of the radius of this second end face inner peripheral, this inner peripheral surface also has a fillet section that is connected in this first end face inner peripheral and this socket section, this socket section is connected between this fillet section and this second end face, and this second link appearance forms an outer surface, and this outer peripheral face and this outer surface are connected with each other.

Described sleeve of gaining in strength, wherein, this socket section cross section is linearly, this adapter section cross section is linearly, this collar from the socket section of inner peripheral surface to being formed with a thickness between the outer surface of this collar, the corner that the first link of this body is pulled hole from this is to being formed with a thickness between the adapter section of this outer peripheral face, the thickness of this body the first link is less than the thickness of this collar, the outer surface of this collar is made as with the outer peripheral edges of this body the second convex section and flushes, and makes the outer surface of this collar not protrude from the outer peripheral edges of this body the second convex section.

Therefore, because collar hardness is greater than the hardness of body, form the increase of tube-in-tube structure intensity, allow the deflection of hole when stressed of pulling of body the first link reduce, even because long-term repeatability is pulled operation, while causing the corner of pulling hole of body the first link to produce micro-fractures or crack, outside the first link that is coated on body that the collar still can be good, make pulling hole and still can continuing to provide the switching effect of the first link, reduce the problem of damaging, and then improve the service life of sleeve.

And the radius that utilizes the socket section of the collar is slightly less than the combination of the radius of body adapter section, the combination that the collocation collar does not contact with the first convex section and the collar does not contact with the second convex section, when the collar is knocked in to body, as long as can guarantee that the collar is fully by the first convex section, belong to and assembled, the precision of demand is not high, therefore also can complete easily assembling without the professional person, it is a quite easy design, and such design can also be complete the structural form of maintainance set ring outer surface, the color of complete maintainance set ring outer surface for example, lines, word, cloudy surface or minute surface form.

The accompanying drawing explanation

The stereo appearance figure that Fig. 1 is the present invention's sleeve of gaining in strength;

The three-dimensional exploded view that Fig. 2 is the present invention's sleeve of gaining in strength;

Fig. 3 is the cross-sectional view that sleeve that the present invention gains in strength is got along the 3-3 face line in Fig. 1;

The partial enlarged drawing that Fig. 4 is Fig. 3 of the present invention, mean the sheathed state that is incorporated into body of the collar.

Description of reference numerals: 10-sleeve; The 20-body; 21-the first link; 211-pulls hole; The 212-outer peripheral face; 213-the first convex section; 214-the second convex section; The 215-adapter section; The 216-terminal surface; The 217-lead segment; 22-the second link; The 221-drive hole; The 222-outer surface; The 30-collar; 31-the first end face; 32-the second end face; The 33-inner peripheral surface; 331-is socketed section; 332-fillet section; The 34-outer surface; L215-length; L331-length; T21-thickness; T30-thickness.

The specific embodiment

Referring to figs. 1 through Fig. 4, the embodiment of the sleeve of gaining in strength for the present invention.Sleeve 10 of the present invention includes a body 20 and a collar 30; Wherein:

Body 20 is made for metal material, and body 20 has reciprocal first link 21 and second link 22, the first links 21 can be connected as driven tool or treat the regular worker crop with the second link 22.Driven tool is as hand-held tool, pneumatic tool or electric tool.And treat the treat fixation kit of regular worker crop as hexagonal shapes such as bolt, nuts.

The first link 21 of body 20 offers one along the axially extended non-circular hole 211 of pulling of body 20, pull hole 211 can connect be the hexagon shape treat the regular worker crop.The second link 22 of body 20 offers one along the axially extended non-circular drive hole 221 of body 20, and drive hole 221 can connect the driven tool that is square head-shaped.

The first link 21 appearances of body 20 form an outer peripheral face 212, and the second link 22 appearances of body 20 form an outer surface 222, and outer peripheral face 212 is connected with each other with outer surface 222.

The outer peripheral face 212 of the first link 21 has first convex section 213, second convex section 214 and adapter section 215, the first convex section 213 and the second convex section 214 toward each other.Adapter section 215 is connected in inner peripheral and second convex section 214 inner peripherals of the first convex section 213.The inner peripheral of the first convex section 213 is expanded gradually and makes cross section be oblique line shape towards the direction that is away from adapter section 215, the inner peripheral of the second convex section 214 makes cross section be 1/4 circular-arc towards the direction expansion that is away from adapter section 215, the cross section of adapter section 215 is linearly and have a length L 215.

The radius of the adapter section 215 of body 20 is less than the radius of the first convex section 213 outer peripheral edges.The radius of the adapter section 215 of body 20 is less than the radius of the second convex section 214 outer peripheral edges, makes the first convex section 213 and the second convex section 214 all protrude from adapter section 215.The radius of the first convex section 213 outer peripheral edges is less than the radius of the second convex section 214 outer peripheral edges, and the radius of the first convex section 213 outer peripheral edges is slightly larger than the radius of adapter section 215, makes the outer peripheral edges of the first convex section 213 only protrude from a little adapter section 215.

The end of the first link 21 of body 20 forms a terminal surface 216, and described terminal surface 216 inner peripherals are connected in the opening part of pulling hole 211, and the outer peripheral edges of terminal surface 216 are connected in the outer peripheral face 212 of body 20.Body 20 outer peripheral faces 212 include a lead segment 217 that is connected in the first convex section 213 outer peripheral edges and terminal surface 216 outer peripheral edges, the outer peripheral edges of lead segment 217 are dwindled gradually and make cross section be oblique line shape towards terminal surface 216, and the radius of lead segment 217 inner peripherals is less than the radius of adapter section 215.

The collar 30 is made for metal material, and the hardness of the collar 30 is greater than the hardness of body 20.The collar 30 is sheathed on the outer peripheral face 212 of body 20, and intensity that can reinforcing sleeve 10.The collar 30 includes first end face 31, the second end face 32 and the inner peripheral surface 33 be connected between the first end face 31 and the second end face 32.The first end face 31 of the collar 30 and the reciprocal upper/lower terminal that is positioned at the collar 30 of the second end face 32.

The first end face 31 of the collar 30 does not contact with the first convex section 213 in contrast to the second convex section 214 and first end face 31 of body 20.The second end face 32 of the collar 30 towards the second convex section 214 of body 20 but the second end face 32 with the second convex section 214, do not contact.

The inner peripheral surface 33 of the collar 30 has a socket section 331, and between the inner peripheral that socket section 331 is located at the first end face 31 and the inner peripheral of the second end face 32, described socket section 331 cross sections are linearly.When the collar 30 is not sheathed on body 20, the radius of the collar 30 socket sections 331 is slightly less than the radius of body 20 adapter sections 215, therefore the collar 30 can be combined on body 20 after being sheathed on body 20 closely, forms friction tight effect.The socket section 331 of the collar 30 has a length L 331, the length L 331 of the collar 30 socket sections 331 is less than the length L 215 of body 20 adapter sections 215, make the collar 30 the first end face 31, socket section 33 is neither with the first convex section 213, contacts, also make the second end face 32, the socket section 33 of the collar 30 contacts with the second convex section 214, allow between first convex section 213, the second convex section 214 of the upper/lower terminal of the collar 30 and body 20 formation respectively remain with the state in space.

During assembling, if first by the second end face 32 of the collar 30 towards body 20, then make the collar 30 knock in or be pressed into and can complete easily assembling with machine towards the direction of the second link 22 from the first link 21 of body 20.Because body 20 hardness are less than the hardness of the collar 30, and the radius of the socket section 331 of the collar 30 is slightly less than the radius of body 20 adapter sections 215, therefore when assembling, the collar 30 is sheathed in the process of body 20, the first link 21 of body 20 and the first convex section 213 can be by socket section 331 extruding of the collar 30 and elasticity inside contracts, make the collar 30 can enter smoothly the adapter section 215 of body 20, after the socket section 331 of the collar 30 is crossed the first convex section 213, the restoring force that the first link 21 of body 20 has can make the first convex section 213 revert back to the convex shape extended out, and the socket section 331 that makes the collar 30 is a tight fit in the adapter section 215 of body 20 and does not separate.

In addition, the radius of large and lead segment 217 inner peripherals of the radius of the collar 30 second end face 32 inner peripherals, therefore the lead segment 217 of body 20 can allow the second end face 32 of the collar 30 be easy to by the first convex section 213, make the collar 30 enter smoothly adapter section 215 places of body 20.The inner peripheral surface 33 of the collar 30 also has one and is connected in the first end face 31 inner peripherals and the fillet section 332 that is socketed section 331, fillet section 332 can make the first convex section 213 of body 20 revert back to fully the convex shape extended out, and the first end face 31 of the collar 30, socket section 331 are contacted with the first convex section 213 with fillet section 332 is neither.The socket section 331 of the collar 30 is connected between fillet section 332 and the second end face 32.

Therefore, because the collar 30 hardness are greater than the hardness of body 20, form the increase of sleeve 10 structural strengths, allow the deflection of hole 211 when stressed of pulling of body 20 first links 21 reduce, even because long-term repeatability is pulled operation, what cause body 20 first links 21 pulls 211 corner, hole while producing micro-fractures or crack, outside the first link 21 that is coated on body 20 that the collar 30 still can be good, make pulling hole 211 and still can continuing to provide the switching effect of the first link 21, reduce the problem of damaging, and continue to provide and lock accurately torsion, and then the service life of improving sleeve 10.

And the radius that utilizes the socket section 331 of the collar 30 is slightly less than the combination of the radius of body 20 adapter sections 215, the combination that the collocation collar 30 does not contact with the first convex section 213 and the collar 30 does not contact with the second convex section 214, when the collar 30 is knocked in to body 20, as long as can guarantee that the collar 30 is fully by the first convex section 213, belong to and assembled, the precision of demand is not high, therefore also can complete easily assembling without the professional person, it is a quite easy design, and such design can also be complete the structural form of the maintenance collar 30 outer surfaces 34, the color of the complete maintenance collar 30 outer surfaces 34 for example, lines, word, cloudy surface or minute surface form.

Moreover, because the collar 30 hardness are greater than the hardness of body 20, therefore the metal material of body 20 can select the metal that cost is low to be processed into, and after being arranged with the collar 30 that hardness is high, the sleeve 10 of gained still has good intensity, effectively increases the service life.

In addition, the collar 30 is formed with a thickness T 30 from the socket section 331 of inner peripheral surface 33 between the outer surface 34 of the collar 30, body 20 first links 21 are formed with a thickness T 21 from pulling 211 corner, hole between the adapter section 215 of outer peripheral face 212, the thickness T 21 of body 20 first links 21 is less than the thickness T 30 of the collar 30, so when the collar 30 thickness T 30 enough reinforcing sleeve 10 structures, it is very little that the thickness T 21 of body 20 first links 21 just can be done, reduce the use amount of body 20 materials, also can effectively dwindle the diameter of sleeve 10, reach weight reduction simultaneously, reduce the advantage that takes up room and can work in small space.The outer surface 34 of the collar 30 is made as with the outer peripheral edges of body 20 second convex sections 214 and flushes, and makes the outer surface 34 of the collar 30 not protrude from the outer peripheral edges of body 20 second convex sections 214.

Claims

1. a sleeve of gaining in strength, is characterized in that, includes:

2. sleeve of gaining in strength as claimed in claim 1, it is characterized in that, the first end face of this collar does not contact with this first convex section in contrast to the second convex section and this first end face of this body, the second end face of this collar towards the second convex section of this body but this second end face with this second convex section, do not contact.

3. sleeve of gaining in strength as claimed in claim 2, it is characterized in that, this adapter section has a length, this socket section also has a length, the length of this socket section is less than the length of this adapter section, this first end face and the reciprocal upper/lower terminal that is positioned at this collar of this second end face, form respectively the state that remains with space between the first convex section of the upper/lower terminal of this collar and this body, the second convex section.

4. as claim 1 or 2 or 3 described sleeves of gaining in strength, it is characterized in that, when this collar is not sheathed on this body, the radius of this socket section is less than the radius of this adapter section, makes this socket section be a tight fit in this adapter section and not separate.

5. sleeve of gaining in strength as claimed in claim 4, is characterized in that, the radius of this adapter section is less than the radius of these the first convex section outer peripheral edges, and the radius of this adapter section is less than the radius of these the second convex section outer peripheral edges.

6. sleeve of gaining in strength as claimed in claim 5, is characterized in that, the radius of these the first convex section outer peripheral edges is less than the radius of these the second convex section outer peripheral edges.

7. sleeve of gaining in strength as claimed in claim 6, it is characterized in that, the inner peripheral of this first convex section is expanded gradually and makes cross section be oblique line shape towards the direction that is away from this adapter section, and the inner peripheral of this second convex section makes cross section be 1/4 circular-arc towards the direction expansion that is away from this adapter section.

8. sleeve of gaining in strength as claimed in claim 6, it is characterized in that, the end of this first link forms a terminal surface, this terminal surface inner peripheral is connected in the opening part that this pulls hole, the outer peripheral edges of this terminal surface are connected in this outer peripheral face, this outer peripheral face includes a lead segment that is connected in these the first convex section outer peripheral edges and these terminal surface outer peripheral edges, and the outer peripheral edges of this lead segment are dwindled gradually and make cross section be oblique line shape towards this terminal surface.

9. sleeve of gaining in strength as claimed in claim 8, it is characterized in that, the radius of this lead segment inner peripheral is less than the radius of this adapter section, the radius of large and this lead segment inner peripheral of the radius of this second end face inner peripheral, this inner peripheral surface also has a fillet section that is connected in this first end face inner peripheral and this socket section, this socket section is connected between this fillet section and this second end face, and this second link appearance forms an outer surface, and this outer peripheral face and this outer surface are connected with each other.

10. sleeve of gaining in strength as claimed in claim 4, it is characterized in that, this socket section cross section is linearly, this adapter section cross section is linearly, this collar from the socket section of inner peripheral surface to being formed with a thickness between the outer surface of this collar, the corner that the first link of this body is pulled hole from this is to being formed with a thickness between the adapter section of this outer peripheral face, the thickness of this body the first link is less than the thickness of this collar, the outer surface of this collar is made as with the outer peripheral edges of this body the second convex section and flushes, make the outer surface of this collar not protrude from the outer peripheral edges of this body the second convex section.